CVE-2023-52686

powerpc/powernv: Add a null pointer check in opal_event_init()

MEDIUM

5.5

CVSS Score

Published: May 17, 2024 at 02:24 PM UTC

Updated: June 17, 2026 at 06:43 AM UTC

2 products affected across 2 vendorsLinux KernelDebian Linux

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: powerpc/powernv: Add a null pointer check in opal_event_init() kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux · Debiandrupal

95%

10.0

Linux Kernel · Linux

95%

4.11 ≤ v < 4.19.3064.11 ≤ v < 5.10.2094.11 ≤ v < 5.15.1484.11 ≤ v < 5.4.2684.11 ≤ v < 6.1.754.11 ≤ v < 6.6.144.11 ≤ v < 6.7.24.11 ≤ v < 6.84.20 ≤ v < 5.4.2685.11 ≤ v < 5.15.1485.16 ≤ v < 6.1.755.5 ≤ v < 5.10.2096.2 ≤ v < 6.6.146.7 ≤ v < 6.7.22717a33d60745f2f72e521cdaedf79b00f66f8ca4.11

Vendor states this is fixed in 8422d179cf46889c15ceff9ede48c5bfa4e7f0b4 (fixed)

Vendor states this is fixed in 8649829a1dd25199bbf557b2621cedb4bf9b3050 (fixed)

Vendor states this is fixed in 9a523e1da6d88c2034f946adfa4f74b236c95ca9 (fixed)

Vendor states this is fixed in a14c55eb461d630b836f80591d8caf1f74e62877 (fixed)

Vendor states this is fixed in c0b111ea786ddcc8be0682612830796ece9436c7 (fixed)

Vendor states this is fixed in e08c2e275fa1874de945b87093f925997722ee42 (fixed)

Vendor states this is fixed in e6ad05e3ae9c84c5a71d7bb2d44dc845ae7990cf (fixed)

Vendor states this is fixed in e93d7cf4c1ddbcd846739e7ad849f955a4f18031 (fixed)

Vendor states this is fixed in 4.11 (unaffected)

Vendor states this is fixed in 4.19.306 (unaffected)

Vendor states this is fixed in 5.10.209 (unaffected)

Vendor states this is fixed in 5.15.148 (unaffected)

Vendor states this is fixed in 5.4.268 (unaffected)

Vendor states this is fixed in 6.1.75 (unaffected)

Vendor states this is fixed in 6.6.14 (unaffected)

Vendor states this is fixed in 6.7.2 (unaffected)

Vendor states this is fixed in 6.8 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references